<div class="row">
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/35" class="thumbnail">
            <img src="/assets/images/index/flower.png" alt="矿山领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>矿山整体解决方案等</strong></h4>
        </a>
    </div>
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/32" class="thumbnail">
            <img src="/assets/images/index/water_sea.png" alt="水利领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>水利工程、生态湖设计等</strong></h4>
        </a>
    </div>
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/31" class="thumbnail">
            <img src="/assets/images/index/tree_conifer.png" alt="林业领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>林业资源调查、规划设计等</strong></h4>
        </a>
    </div>
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/34" class="thumbnail">
            <img src="/assets/images/index/planet.png" alt="国土领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>办/换采矿证、办理用地手续等</strong></h4>
        </a>
    </div>
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/33" class="thumbnail">
            <img src="/assets/images/index/windmill.png" alt="环保领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>给水处理、废水处理等</strong></h4>
        </a>
    </div>
    <div class="col-xs-6 col-md-3">
        <a href="/index/single/index/id/36" class="thumbnail">
            <img src="/assets/images/index/light_bulb.png" alt="其他领域" />
            <hr style="margin:15px 0;">
            <h4 class="text-center" style=""><strong>社会稳定风险评估等</strong></h4>
        </a>
    </div>
</div>